OMEGA: OSIRIS Mapping of Emission-Line Galaxies in A901/2

Abstract

This work presents the first results from an ESO Large Programme carried out using the OSIRIS instrument on the 10m GTC telescope (La Palma). We have observed a large sample of galaxies in the region of the Abell 901/902 system (z ~ 0.165) which has been extensively studied as part of the STAGES project. We have obtained spectrally and spatially resolved H-alpha and [NII] emission maps for a very large sample of galaxies covering a broad range of environments. The new data are combined with extensive multi-wavelength observations which include HST, COMBO-17, Spitzer, Galex and XMM imaging to study star formation and AGN activity as a function of environment and galaxy properties such as luminosity, mass and morphology. The ultimate goal is to understand, in detail, the effect of the environment on star formation and AGN activity.

arXiv comment4 pages, 3 figures, B. Rodriguez Del Pino et al. 2014, in IAU Symp. 309, "Galaxy in 3D across the Universe", B. L. Ziegler, F. Combes, H. Dannerbauer, M. Verdugo, Eds. (Cambridge: Cambridge Univ. Press), in press

References in corpus (9)

• emcee: The MCMC Hammer
• Star Formation in Galaxies Along the Hubble Sequence
• The Environmental Dependence of the Relations between Stellar Mass, Structure, Star Formation and Nuclear Activity in Galaxies
• Galaxy Zoo: the dependence of morphology and colour on environment
• Alternative diagnostic diagrams and the "forgotten" population of weak line galaxies in the SDSS
• Galaxy And Mass Assembly: Evolution of the Halpha luminosity function and star formation rate density up to z<0.35
• STAGES: the Space Telescope A901/2 Galaxy Evolution Survey
• An H-alpha survey of the rich cluster A1689
• Turbulence transmission in parallel modified shocks using ray tracing